<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索与添加 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <!-- 索引列 type="index" -->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <!--作用域插槽 template 获取一行数据 slot-scope=scope  {{scope.row}} -->
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <!-- switch开关 来展示状态 v-model双向数据绑定 -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="185px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger"
             icon="el-icon-delete"
              size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip class="item"
             effect="dark"
              content="分配角色"
               placement="top">
              <el-button type="warning"
               icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页展示 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
 
    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户"
     :visible.sync="editDialogVisible"
      width="50%" @close="editDialogClosed">
      <!-- 内容主体区域 -->
      <el-form :model="editForm"
       :rules="editFormRules"
        ref="editFormRef"
         label-width="70px">
       <!-- rules验证规则 -->
        <el-form-item label="用户名" >
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email" >
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile" >
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser ">确 定</el-button>
      </span>
    </el-dialog>
<!-- 分配角色的对话框 -->
  <el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  >
  <div>
    <p>当前的用户：{{userInfo.username}}</p>
    <p>当前的角色:{{userInfo.role_name}}</p>
    <p>
      分配新角色：
      <el-select v-model="selectedRoleId" placeholder="请选择">
      <el-option
        v-for="item in rolesList"
        :key="item.id"
        :label="item.roleName"
        :value="item.id">
      </el-option>
      </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>


  </div>
</template>

<script>
export default {
  data() {
    //自定义验证添加用户中的邮箱的规则
    var checkEmail = (rule, value, cb) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        //用regEmail.test方法校验value是否合法
        //合法的邮箱
        return cb();
      }
      cb(new Error("邮箱格式不正确"));
    };
    //自定义验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      //验证手机好的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        //用regMobile.test方法校验value是否合法
        return cb();
      }
      cb(new Error("手机号码格式不正确"));
    };

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "", //查询参数
        pagenum: 1, //当前页码
        pagesize: 2, //默认显示两条数据
      },
      userlist: [], //用户列表
      total: 0, //记录数
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: "请输入用户名",
            trigger: "blur",
          },
          {
            min: 3,
            max: 10,
            message: "用户名长度在3-10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          {
            required: true,
            message: "请输入密码",
            trigger: "blur",
          },
          {
            min: 6,
            max: 15,
            message: "密码长度在6-15个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          {
            required: true,
            message: "请输入邮箱",
            trigger: "blur",
          },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          {
            required: true,
            message: "请输入手机号",
            trigger: "blur",
          },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      //控制显示对话框的显示与隐藏
      editDialogVisible: false,
      //查询到用户信息对象
      editForm:{
        //请求参数
      
        email:'',
        mobile:''
      },
      //添加修改表单的验证规则对象
      editFormRules: {
       
        email: [
          {
            required: true,
            message: "请输入邮箱",
            trigger: "blur",
          },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          {
            required: true,
            message: "请输入手机号",
            trigger: "blur",
          },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
       
       //控制分配角色对话框的显示与隐藏
       setRoleDialogVisible: false,

       //需要被分配角色的用户信息
       userInfo:{},

     //所有角色的数据列表
       rolesList:[],

       //已选中的角色id值
       selectedRoleId:''

    };
  },
  created() {
    //生命周期函数
    //获取函数
    this.getUserList();
  },
  methods: {
    //事件处理函数
    async getUserList() {
      //定义函数
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      }); //ajax请求
      if (res.meta.status !== 200) {
        return this.$mseeage.error("获取用户列表失败");
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
      console.log(res);
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      console.log(newSize);
      this.queryInfo.pagesize = newSize; //把页码显示的数据条数传递给参数pagesize 显示的数据就会根据页绑定的条数显示
      this.getUserList(); //重新获取数据
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      console.log(newPage);
      this.queryInfo.pagenum = newPage; //把页码传递给参数pagesize  pagesize  会随着newpage改变而改变
      this.getUserList();
    },
    //监听switch状态的改变,更新用户状态
    async userStateChanged(userinfo) {
      console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state; //更新失败重置为默认值
        return this.$message.error("更新用户状态失败！");
      }
      this.$message.success("更新用户状态成功");
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed() {
      //重置添加用户的表单
      this.$refs.addFormRef.resetFields();
    },
    //点击确定按钮，添加新用户
    addUser() {
      //表单预校验
      this.$refs.addFormRef.validate(async (valid) => {
        console.log(valid);
        if (!valid) return;
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) {
          //如果用户状态码不等于201, 就是添加失败
          this.$message.error("添加用户失败");
        }
        this.$message.success("添加用户成功");
        //隐藏添加用户的对话框
        this.addDialogVisible = false;
        //添加完之后重新获取用户列表数据
        this.getUserList();
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      //console.log(id);
     const {data:res}=await this.$http.get('users/'+id)
       if(res.meta.status!==200){
       return  this.$message.error("修改用户失败")
         }
          this.editForm=res.data
          this.editDialogVisible=true
       },
       //监听修改用户对话框的关闭事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    //点击确定按钮，修改新用户
     editUser(){
       //修改表单的预校验
       this.$refs.editFormRef.validate(async valid=>{
         console.log(valid)
          if (!valid) return;
        //可以发起添加用户的网络请求
        const { data: res } = await this.$http.put('users/'+ this.editForm.id,{
          email:this.editForm.email,mobile:this.editForm.mobile
        });
        if (res.meta.status !== 200) {
          //如果用户状态码不等于200, 就是添加失败
          this.$message.error("更新用户失败");
        }
        //隐藏添加用户的对话框
        this.editDialogVisible = false;
        //提示修改成功
        this.$message.success("更新用户成功");
        //添加完之后重新获取用户列表数据
        this.getUserList();
       })
     },
    //根据id删除对应的用户信息
    async removeUserById(id){
     
      //弹框询问用户是否删除
     const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)//用cath捕获取消删除的错误消息并把错误消息return给confirmResult

          //如果用户确认删除，则返回值为字符窜confirm
          //如果用户取消删除，则返回值为字符窜cancel
         console.log(confirmResult)
        if(confirmResult!=="confirm"){
          return this.$message.info("已取消删除")
        }
      const{data:res}= await this.$http.delete('users/'+id)
        if(res.meta.status!==200){
            return this.$message.error("")
        }
        this.$message.success("删除用户成功")
        this.getUserList()
        console.log('确认了删除')

    },
    
 //展示分配角色的对话框
   async setRole(userInfo){
     this.userInfo=userInfo
       //在展示对话框之前，获取所有的角色列表
    const {data:res}= await this.$http.get('roles')
      if(res.meta.status!==200){
        return this.$message.error("获取角色列表失败！")
      }

     this.rolesList=res.data
      this.setRoleDialogVisible=true
    },

    //点击按钮分配角色
   async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error("请选择要分配的角色！")
        }
        //发送请求保存用户的操作
      const{data:res} =await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})

    if(res.meta.status!=200){
       return this.$message.error("分配角色失败！")
    }
      //提示修改成功
        this.$message.success("更新角色成功");
        this.getUserList()
        this.setRoleDialogVisible=false

    }
    },
    
};
</script>

<style  scoped>
</style> 
